Presume cal-mag (cal really) deficiency

:toke:-- I'm leaning toward Proph's call, I think this is a overload of nutes in the soil, and it's starting to show on the tips too now,...
Symptoms looks like Ca defc. to me, fine spotting, pale veins are pretty classic for this... Not from lack of, but antagonistic uptake issues.
At 1400+ppm, it's flush time! ...start with 2-3x/pot volume of low ppm water; RO/Di, "drinking/spring"... Those self-fill machines are a great way to go!

Saturate the pot to start run-off, then let it sit for a few minutes or so, then start your pour through; do that fairly fast, less than 20 min, so as to not starve the roots of O2... test the r-o every half gal. or so to see where your ppm's and pH are at, once you get to about 400-ish, stop; then make a 33% strength solution of BioBloom, Alga', and TopMax only, a L or so, and put that through...
Let drain fully, then to speed it up and draw excess off, set the pot on a nice stack of newspaper with a paper towel or 2 tucked in tight to the bottom where the drain holes are; this will start a capillary action going, wicking the excess out into the paper... This will also pull in fresh air as it does, just like in coco - :thumbsup:
 
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